The narrative you spin up top about the Native American population seeding their own fate by assisting early European settlers in America with agricultural techniques seems to directly conflict with Jared Diamond’s Pulitzer Prize winning book – Guns, Germs, And Steel – detailing “…why peoples of certain continents succeeded in invading other continents and conquering or displacing their peoples.”

Diamond argues that European settlers had an immunological, technological, agricultural and socio-structural advantage over their North American counterparts – most of which stems from the geographical advantage of the European culture having developed on the Eurasian super-continent where exposure to varied cultures and peoples from China to the UK (i.e. China could have done just as well in the 17th thru 20th centuries as Western Europe had a few idiosyncrasies of their culture not stifled them) provided hormetic strengthening over centuries of repeated exposure.

The pack, slaughter and feed animals (cows, sheep, pigs, horses, chickens, etc.) and steel and germs the Europeans brought with them would have all but ensured their conquering of the continent, even if their crop techniques and crop selection were crude at first. So taken as a whole, the Europeans brought FAR SUPERIOR agricultural technology with them to North America, a point which is not seriously debatable, it is an established fact.